Network Access Control And Http Request Handling

Explore examples in [E2B Cookbook](https://github.com/e2b-dev/e2b-cookbook)

Unique: Provides centralized network policy enforcement at the sandbox level, allowing fine-grained control over which external services code can access without requiring code changes or proxy configuration

vs others: More flexible than blocking all network access and more secure than allowing unrestricted outbound connections, while simpler than implementing per-request authentication or rate limiting in application code